I have throttle body

Tiny
CATHY PAYTON
  • 1989 GMC C1500
  • 26,000 MILES

I have throttle body. It has recently started idling up and down. Then it will idle real high like choke is sticking, but I thought throttle body didn't have a choke. It sometimes dies when put in gear and boggs down. Any suggestions?

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Sunday, February 10th, 2013 AT 1:30 AM

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Tiny
MHPAUTOS
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Clean throttle body and IAC with throttle body cleaner and scan for any unresolved fault codes start here.

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Sunday, February 10th, 2013 AT 1:35 AM
Tiny
CATHY PAYTON
  • MEMBER

Already did that and replaced sensors, fuel filter, plugs and wires. Even took it to shop and they couldn't fix it. I'm stumped.

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Sunday, February 10th, 2013 AT 1:51 AM
Tiny
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May be electrical, but I would base my checkes around the IAC have you tried a know good one as a test?

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Sunday, February 10th, 2013 AT 1:58 AM
Tiny
CATHY PAYTON
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No. Sorry but whats the iac?

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Sunday, February 10th, 2013 AT 2:03 AM
Tiny
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Idle air Control motor.

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Sunday, February 10th, 2013 AT 4:13 AM

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